Synfig Studio 0.63.05

Synfig Studio 0.63.05 is a free and open-source 2D animation software, designed as powerful industrial-strength solution for creating film-quality animation using a vector and bitmap artwork. It eliminates the need to create animation frame-by frame, allowing you to produce 2D animation of a higher quality with fewer people and resources. Synfig Studio Video animation is available for Windows, Linux and MacOS X.
Features  
Spatial resolution-independenceMost elements are vector-based, and all layers are parametrically generated, hence even when changing the target resolution of a project, the only pixelation will occur in imported raster images, not the built-in components.Temporal resolution independenceAnimation-keyframes are automatically interpolated by the computer, resulting in smooth motionHigh Dynamic-Range Imaging (HDRI)By using floating-point math in the image calculations, HDRI processing allows canvases to internally understand a far greater range of pixel luminance, resulting in better lighting effects, and improved color composition.Pentablet-friendly toolsThe draw tool already reads the pressure sensitivity channel off your favorite tablets, for natural line weighting, and more to come!Artist-oriented designWhile it may not be obvious in this early state, Synfig (and its proprietary predecessors) has been designed from the ground up with animation workflow in mind.Built-in CVS supportI haven`t tried this yet, but I saw it in the file menu and it looked nifty, so- Hey, feature!Path-based GradientsUnlike purely SVG-based vector software, and most consumer-level animation programs, Synfig has full support for gradient paths - gradients that follow along a drawn shape. This allows artists to easily add soft shading to animation without the trouble of painting it onto every frame.LayersSynfig supports a multitude of layers of various types; geometric, gradients, filters, distortions, transformations, fractal and a few others.